i just brought my b20 from a jdm place in nj right it has no knock sensor on it but... it has the low manifold on it not the big manifold could i have the jdm high comp b20??? i searched but nobody has this low mani non knock sensor b20b so i guess i japan they don't label it b20z??? any help here

 

High compression B20's come with knock sensors from Japan. They are all called B20B in Japan as well. Low intake manifold generally means high compression, however that is not always the case. Chances are you have a low compression B20B which is exactly what you paid for.

 

I PAID 900 FOR MY B20 HOW ELSE CAN I TELL